1209820

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 2561328

約数和(自身を除く): 1351508

約数列:

[1, 2, 4, 5, 10, 20, 241, 251, 482, 502, 964, 1004, 1205, 1255, 2410, 2510, 4820, 5020, 60491, 120982, 241964, 302455, 604910, 1209820]

約数ペア:

[(1, 1209820), (2, 604910), (4, 302455), (5, 241964), (10, 120982), (20, 60491), (241, 5020), (251, 4820), (482, 2510), (502, 2410), (964, 1255), (1004, 1205)]